<p>使用<a href="https://docs.python.org/3/library/json.html" rel="nofollow noreferrer">json</a>包。试试这个:</p>
<pre><code>import json
d = [{'blacklist': [{'devnode': '"^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"'}, {'devnode': '"^hd[a-z][[0-9]*]"'}, {'devnode': '"^cciss!c[0-9]d[0-9]*"'}]}, {'defaults': [{'user_friendly_names': 'yes'}]}, {'defaults': [{'udev_dir': '/dev'}, {'polling_interval': '10'}, {'selector': '"round-robin 0"'}, {'path_grouping_policy': 'multibus'}, {'getuid_callout': '"/sbin/scsi_id -g -u -s /block/%n"'}, {'prio_callout': 'none'}, {'path_checker': 'readsector0'}, {'rr_min_io': '100'}, {'max_fds': '8192'}, {'rr_weight': 'priorities'}, {'failback': 'immediate'}, {'no_path_retry': 'fail'}, {'user_friendly_names': 'yes'}]}, {'blacklist': [{'wwid': '26353900f02796769'}, {'devnode': '"^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"'}, {'devnode': '"^hd[a-z]"'}]}, {'devices': [{'device': [{'vendor': '"COMPAQ "'}, {'product': '"HSV110 (C)COMPAQ"'}, {'path_grouping_policy': 'multibus'}, {'getuid_callout': '"/sbin/scsi_id -g -u -s /block/%n"'}, {'path_checker': 'readsector0'}, {'path_selector': '"round-robin 0"'}, {'hardware_handler': '"0"'}, {'failback': '15'}, {'rr_weight': 'priorities'}, {'no_path_retry': 'queue'}]}, {'device': [{'vendor': '"COMPAQ "'}, {'product': '"MSA1000 "'}, {'path_grouping_policy': 'multibus'}]}]}]
print(json.dumps(d, indent=4))
</code></pre>
<p>其中<code>json.dumps</code>命令接受字典<code>d</code>,并在每个缩进中缩进4个空格字符(当然也可以由您选择)。你知道吗</p>
<p>编辑:</p>
<p>如果希望输出与问题中的结果完全相同,则应使用以下递归函数:</p>
<pre><code>def parse(data, indent=0):
if not isinstance(data, list):
data = [data]
for d in data:
for key, val in d.items():
if isinstance(val, list):
print(" "*4*indent + key + "{ ")
parse(val, indent + 1)
print(" "*4*indent + "}")
else:
print("{}{}{}{}" .format(
" "*4*indent, key, " "*(30-len(key)), val))
data = [{'blacklist': [{'devnode': '"^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"'}, {'devnode': '"^hd[a-z][[0-9]*]"'}, {'devnode': '"^cciss!c[0-9]d[0-9]*"'}]}, {'defaults': [{'user_friendly_names': 'yes'}]}, {'defaults': [{'udev_dir': '/dev'}, {'polling_interval': '10'}, {'selector': '"round-robin 0"'}, {'path_grouping_policy': 'multibus'}, {'getuid_callout': '"/sbin/scsi_id -g -u -s /block/%n"'}, {'prio_callout': 'none'}, {'path_checker': 'readsector0'}, {'rr_min_io': '100'}, {'max_fds': '8192'}, {'rr_weight': 'priorities'}, {'failback': 'immediate'}, {'no_path_retry': 'fail'}, {'user_friendly_names': 'yes'}]}, {'blacklist': [{'wwid': '26353900f02796769'}, {'devnode': '"^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"'}, {'devnode': '"^hd[a-z]"'}]}, {'devices': [{'device': [{'vendor': '"COMPAQ "'}, {'product': '"HSV110 (C)COMPAQ"'}, {'path_grouping_policy': 'multibus'}, {'getuid_callout': '"/sbin/scsi_id -g -u -s /block/%n"'}, {'path_checker': 'readsector0'}, {'path_selector': '"round-robin 0"'}, {'hardware_handler': '"0"'}, {'failback': '15'}, {'rr_weight': 'priorities'}, {'no_path_retry': 'queue'}]}, {'device': [{'vendor': '"COMPAQ "'}, {'product': '"MSA1000 "'}, {'path_grouping_policy': 'multibus'}]}]}]
parse(data)
</code></pre>